ADK is expected to announce on Thursday the results of the tender offer after a months-long dispute between Bain and its top shareholder, WPP.

Bain had been seeking a stake of at least 50.1 percent to take ADK private, offering 3,660 yen per share in Japan’s third-biggest ad agency.

ADK declined to comment. Bain was not immediately available for comment.

Britain’s WPP, the world’s biggest advertising group and ADK’s largest shareholder with a 25 percent stake, had initially tried to block Bain’s tender offer, which it said undervalued the company. But it reversed its position last month and agreed to sell its stake at the original offer price in return for the possibility of holding a quarter of the entity that would own ADK. (Reporting by Junko Fujita; Editing by Minami Funakoshi, Chang-Ran Kim and Edwina Gibbs)